9 m). The orbital diameter of the electrons is almost a million times bigger than a proton or neutron, ie there is a lot of nothing in an atom.(There are ~1E22 (10Thousand Billion Billion) atoms in 1 cc of water.)

species; 80% terrestrial. Caused by global warming triggered by a big meteor that hit Siberia. Life recovery took 4 to 5 MY. Latest info says that a huge space rock hit Wilkes Land Antarctica with about 100 MMt TNT, and this caused the antipodal Siberia to have massive lave flows, etc.300 Mi wide crater. Chicxulub rock was 6 miles wide; Wilkes was 30 miles wide. Australia broke off from the Gondwana super continent to be its own continent.

6 miles wide, ~20 km/s, Chicxulub, Mexico, 100 Million megatons of TNT (~ 10 million A-bombs), 145 - 180 km dia. crater. At almost the same time, another meteor hit in the Ukraine: the Boltysh Crater = 24 km dia. Mammalian species start to multiply.

Warm climate. Tropics up to central US. Global temperatures now start to

species extinctions, man is now working on the world's 6th mass extinction. Only this time man will still be here, insuring that there will not be a rebound of the animal kingdom as has happened in the past.

Wisconsinan/Weichsel (or Vistula) glacial period, 70-15 KYAMeteor Crater in Arizona. 1st crater on earth to be identified as being

caused by a space rock. The crater is 1.1 km dia. The nickel-iron rock was 80 m dia and produced 2.5 Mt TNT for v = 20 km/s.

Coldest period of last ice age. Then, start of global warming again, ie a

short, warm interglacial period. Climate can change completely in as little as 3 to 30 years!!!

Space rock, or comet cluster, hit NE America (Lawrence Ice Sheet and

points west?) and it and its aftermath caused the rapid but brief return of the ice age (Younger Dryas), the extinction of the Mammoth et al, and the Clovis people, from north America. Proof is good but not yet conclusive.

A few scientists say the next ice age is due any time now. But it may be

stalled (or maybe accelerated!) by the atmospheric-CO2-caused greenhouse effect. When the fossil fuels are gone, we may again have an ice age and possibly another mass extinction, unless another meteor gets us first. When the glaciers do come there will be a massive influx of people into the tropics. Buy now. Babylon may yet again be a garden spot.

The African plate will collide with the European plate to squeeze the

Mediterranean Sea out of existence and to push up a new mountain range. (Rome may rise again.)

Dieing sun (red giant to white dwarf) expands to envelope the earth.* We